Draw cards equal to the number of cards in your hand, then discard a card for each card drawn this way.
Basic landcycling {2} ({2}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)
{7}{G}{G}
Apex Altisaur
Creature - Dinosaur
When Apex Altisaur enters the battlefield, it fights up to one target creature you don't control.
Enrage -- Whenever Apex Altisaur is dealt damage, it fights up to one target creature you don't control.
10 /
10
{2}{B}{B}
Bane of the Living
Creature - Insect
Morph {X}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)
When Bane of the Living is turned face up, all creatures get -X/-X until end of turn.
4 /
3
{2}{G}
Beast Within
Instant
Destroy target permanent. Its controller creates a 3/3 green Beast creature token.
--
Breeding Pool
Land - Forest Island
({T}: Add {G} or {U}.)
As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.
{2}{B}
Buried Alive
Sorcery
Search your library for up to three creature cards, put them into your graveyard, then shuffle.
{G}
Caustic Caterpillar
Creature - Insect
{1}{G}, Sacrifice Caustic Caterpillar: Destroy target artifact or enchantment.
1 /
1
--
Choked Estuary
Land
As Choked Estuary enters the battlefield, you may reveal an Island or Swamp card from your hand. If you don't, Choked Estuary enters the battlefield tapped.
{T}: Add {U} or {B}.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
{U}{U}
Counterspell
Instant
Counter target spell.
{B}
Dark Ritual
Instant
Add {B}{B}{B}.
{1}{B}
Diabolic Intent
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Search your library for a card, put that card into your hand, then shuffle.
{2}
Dimir Signet
Artifact
{1}, {T}: Add {U}{B}.
{3}{B}{B}
Doom Whisperer
Creature - Nightmare Demon
Flying, trample
Pay 2 life: Surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
6 /
6
{2}{B}
Doomed Necromancer
Creature - Human Cleric Mercenary
{B}, {T}, Sacrifice Doomed Necromancer: Return target creature card from your graveyard to the battlefield.
2 /
2
{G}
Elves of Deep Shadow
Creature - Elf Druid
{T}: Add {B}. Elves of Deep Shadow deals 1 damage to you.
1 /
1
{5}{G}
Elvish Aberration
Creature - Elf Mutant
{T}: Add {G}{G}{G}.
Forestcycling {2} ({2}, Discard this card: Search your library for a Forest card, reveal it, put it into your hand, then shuffle.)
4 /
5
--
Evolving Wilds
Land
{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
--
Exotic Orchard
Land
{T}: Add one mana of any color that a land an opponent controls could produce.
{1}{G}
Farseek
Sorcery
Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.
{1}{G}
Fauna Shaman
Creature - Elf Shaman
{G}, {T}, Discard a creature card: Search your library for a creature card, reveal it, put it into your hand, then shuffle.
2 /
2
--
Flooded Strand
Land
{T}, Pay 1 life, Sacrifice Flooded Strand: Search your library for a Plains or Island card, put it onto the battlefield, then shuffle.
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Forest
Basic Land - Forest
({T}: Add {G}.)
--
Geier Reach Sanitarium
Legendary Land
{T}: Add {C}.
{2}, {T}: Each player draws a card, then discards a card.
{4}{B}{B}
Geth, Lord of the Vault
Legendary Creature - Phyrexian Zombie
Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
{X}{B}: Put target artifact or creature card with mana value X from an opponent's graveyard onto the battlefield under your control tapped. Then that player mills X cards.
5 /
5
{10}{G}{G}
Ghalta, Primal Hunger
Legendary Creature - Elder Dinosaur
This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample
12 /
12
{2}
Golgari Signet
Artifact
{1}, {T}: Add {B}{G}.
{1}{B}
Golgari Thug
Creature - Human Warrior
When Golgari Thug dies, put target creature card from your graveyard on top of your library.
Dredge 4 (If you would draw a card, you may mill four cards instead. If you do, return this card from your graveyard to your hand.)
1 /
1
{1}{G}{U}
Gyre Engineer
Creature - Vedalken Wizard
{T}: Add {G}{U}.
1 /
1
{1}{B}{B}
Hero's Downfall
Instant
Destroy target creature or planeswalker.
{2}{U}{B}
Hostage Taker
Creature - Human Pirate
When Hostage Taker enters the battlefield, exile another target creature or artifact until Hostage Taker leaves the battlefield. You may cast that card for as long as it remains exiled, and mana of any type can be spent to cast that spell.
2 /
3
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{1}{U}
Jace, Vryn's Prodigy
Legendary Creature - Human Wizard
{T}: Draw a card, then discard a card. If there are five or more cards in your graveyard, exile Jace, Vryn's Prodigy, then return him to the battlefield transformed under his owner's control.
0 /
2
--
Jace, Telepath Unbound
Legendary Planeswalker - Jace
+1: Up to one target creature gets -2/-0 until your next turn.
-3: You may cast target instant or sorcery card from your graveyard this turn. If that spell would be put into your graveyard, exile it instead.
-9: You get an emblem with "Whenever you cast a spell, target opponent mills five cards."
0 /
2
{2}{B}{G}
Jarad's Orders
Sorcery
Search your library for up to two creature cards and reveal them. Put one into your hand and the other into your graveyard. Then shuffle.
{B}{B}{G}{G}
Jarad, Golgari Lich Lord
Legendary Creature - Zombie Elf
Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.
{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.
Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand.
2 /
2
{5}{G}{G}
Krosan Tusker
Creature - Boar Beast
Cycling {2}{G} ({2}{G}, Discard this card: Draw a card.)
When you cycle Krosan Tusker, you may search your library for a basic land card, reveal that card, put it into your hand, then shuffle. (Do this before you draw.)
6 /
5
--
Llanowar Wastes
Land
{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.
{3}{B}{G}
Lord of Extinction
Creature - Elemental
Lord of Extinction's power and toughness are each equal to the number of cards in all graveyards.
* /
*
{1}{B}
Mausoleum Secrets
Instant
Undergrowth -- Search your library for a black card with mana value less than or equal to the number of creature cards in your graveyard, reveal it, put it into your hand, then shuffle.
{1}{U}
Merfolk Looter
Creature - Merfolk Rogue
{T}: Draw a card, then discard a card.
1 /
1
{U}{U}
Muddle the Mixture
Instant
Counter target instant or sorcery spell.
Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
--
Myriad Landscape
Land
Myriad Landscape enters the battlefield tapped.
{T}: Add {C}.
{2}, {T}, Sacrifice Myriad Landscape: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.
{1}{B}{B}
Necroplasm
Creature - Ooze
At the beginning of your upkeep, put a +1/+1 counter on Necroplasm.
At the beginning of your end step, destroy each creature with mana value equal to the number of +1/+1 counters on Necroplasm.
Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)
1 /
1
{2}{B}{B}
Necrotic Ooze
Creature - Ooze
As long as Necrotic Ooze is on the battlefield, it has all activated abilities of all creature cards in all graveyards.
4 /
3
{1}{U}
Negate
Instant
Counter target noncreature spell.
{2}{U}
Nimble Obstructionist
Creature - Bird Wizard
Flash
Flying
Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.)
When you cycle Nimble Obstructionist, counter target activated or triggered ability you don't control.
3 /
1
{G/P}
Noxious Revival
Instant
({G/P} can be paid with either {G} or 2 life.)
Put target card from a graveyard on top of its owner's library.
--
Nurturing Peatland
Land
{T}, Pay 1 life: Add {B} or {G}.
{1}, {T}, Sacrifice Nurturing Peatland: Draw a card.
--
Opulent Palace
Land
Opulent Palace enters the battlefield tapped.
{T}: Add {B}, {G}, or {U}.
{2}
Perpetual Timepiece
Artifact
{T}: Mill two cards.
{2}, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.
{1}{U}{B}
Perplex
Instant
Counter target spell unless its controller discards their hand.
Transmute {1}{U}{B} ({1}{U}{B}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
{1}{B}{B}
Phyrexian Arena
Enchantment
At the beginning of your upkeep, you draw a card and you lose 1 life.
{6}
Phyrexian Devourer
Artifact Creature - Phyrexian Construct
When Phyrexian Devourer's power is 7 or greater, sacrifice it.
Exile the top card of your library: Put X +1/+1 counters on Phyrexian Devourer, where X is the exiled card's mana value.
1 /
1
{4}{G}{G}{G}
Plated Crusher
Creature - Beast
Trample
Hexproof (This creature can't be the target of spells or abilities your opponents control.)
7 /
6
{3}{G}{G}
Putrefax
Creature - Phyrexian Horror
Trample, haste
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
At the beginning of the end step, sacrifice Putrefax.
5 /
3
{1}{B}{G}
Putrefy
Instant
Destroy target artifact or creature. It can't be regenerated.
{1}{G}
Rampant Growth
Sorcery
Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
{2}{G}
Ramunap Excavator
Creature - Snake Cleric
You may play lands from your graveyard.
2 /
3
{1}{G}
Sakura-Tribe Elder
Creature - Snake Shaman
Sacrifice Sakura-Tribe Elder: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.
1 /
1
{1}{G}
Satyr Wayfinder
Creature - Satyr
When Satyr Wayfinder enters the battlefield, reveal the top four cards of your library. You may put a land card from among them into your hand. Put the rest into your graveyard.
1 /
1
{1}{B}{G}
Shambling Shell
Creature - Plant Zombie
Sacrifice Shambling Shell: Put a +1/+1 counter on target creature.
Dredge 3 (If you would draw a card, you may mill three cards instead. If you do, return this card from your graveyard to your hand.)
3 /
1
{5}{G}
Shefet Monitor
Creature - Lizard
Cycling {3}{G} ({3}{G}, Discard this card: Draw a card.)
When you cycle Shefet Monitor, you may search your library for a basic land card or a Desert card, put it onto the battlefield, then shuffle. (Do this before you draw.)
6 /
5
{1}{B}{G}{U}
Sidisi, Brood Tyrant
Legendary Creature - Naga Shaman
Whenever Sidisi, Brood Tyrant enters the battlefield or attacks, mill three cards.
Whenever one or more creature cards are put into your graveyard from your library, create a 2/2 black Zombie creature token.
3 /
3
{3}{B}{B}
Skithiryx, the Blight Dragon
Legendary Creature - Phyrexian Dragon Skeleton
Flying
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{B}: Skithiryx, the Blight Dragon gains haste until end of turn.
{B}{B}: Regenerate Skithiryx.
4 /
4
{1}
Sol Ring
Artifact
{T}: Add {C}{C}.
{5}
Soliton
Artifact Creature - Construct
{U}: Untap Soliton.
3 /
4
{2}{B}
Stinkweed Imp
Creature - Imp
Flying
Whenever Stinkweed Imp deals combat damage to a creature, destroy that creature.
Dredge 5 (If you would draw a card, you may mill five cards instead. If you do, return this card from your graveyard to your hand.)
1 /
2
{B}{B}
Stitch Together
Sorcery
Return target creature card from your graveyard to your hand.
Threshold -- Return that card from your graveyard to the battlefield instead if seven or more cards are in your graveyard.
{B}
Stitcher's Supplier
Creature - Zombie
When Stitcher's Supplier enters the battlefield or dies, mill three cards.
1 /
1
--
Sunken Hollow
Land - Island Swamp
({T}: Add {U} or {B}.)
Sunken Hollow enters the battlefield tapped unless you control two or more basic lands.
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{B}
Tainted Strike
Instant
Target creature gets +1/+0 and gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)
{5}{B}
Tasigur, the Golden Fang
Legendary Creature - Human Shaman
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
{2}{G/U}{G/U}: Mill two cards, then return a nonland card of an opponent's choice from your graveyard to your hand.
4 /
5
{3}{G}{U}
Tatyova, Benthic Druid
Legendary Creature - Merfolk Druid
Landfall -- Whenever a land enters the battlefield under your control, you gain 1 life and draw a card.
3 /
3
--
Temple of Mystery
Land
Temple of Mystery enters the battlefield tapped.
When Temple of Mystery enters the battlefield, scry 1.
{T}: Add {G} or {U}.
--
Terramorphic Expanse
Land
{T}, Sacrifice Terramorphic Expanse: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
{2}{B}{G}{U}
The Mimeoplasm
Legendary Creature - Ooze
As The Mimeoplasm enters the battlefield, you may exile two creature cards from graveyards. If you do, it enters the battlefield as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card.
0 /
0
{3}{U}{B}
The Scarab God
Legendary Creature - God
At the beginning of your upkeep, each opponent loses X life and you scry X, where X is the number of Zombies you control.
{2}{U}{B}: Exile target creature card from a graveyard. Create a token that's a copy of it, except it's a 4/4 black Zombie.
When The Scarab God dies, return it to its owner's hand at the beginning of the next end step.
5 /
5
{7}{U}
Treasure Cruise
Sorcery
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Draw three cards.
{6}
Triskelion
Artifact Creature - Construct
Triskelion enters the battlefield with three +1/+1 counters on it.
Remove a +1/+1 counter from Triskelion: It deals 1 damage to any target.
1 /
1
--
Twilight Mire
Land
{T}: Add {C}.
{B/G}, {T}: Add {B}{B}, {B}{G}, or {G}{G}.
--
Underground River
Land
{T}: Add {C}.
{T}: Add {U} or {B}. Underground River deals 1 damage to you.
--
Undergrowth Stadium
Land
Undergrowth Stadium enters the battlefield tapped unless you have two or more opponents.
{T}: Add {B} or {G}.
{B}
Vampiric Tutor
Instant
Search your library for a card, then shuffle and put that card on top. You lose 2 life.
--
Waterlogged Grove
Land
{T}, Pay 1 life: Add {G} or {U}.
{1}, {T}, Sacrifice Waterlogged Grove: Draw a card.
{2}{U}
Windfall
Sorcery
Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.
{1}{U}
Winds of Rebuke
Instant
Return target nonland permanent to its owner's hand. Each player mills two cards.
--
Yavimaya Coast
Land
{T}: Add {C}.
{T}: Add {G} or {U}. Yavimaya Coast deals 1 damage to you.